攻击角度约束下打击机动目标的制导律

Guidance Law with Attack Angle Constraints for Maneuvering Targets

针对某些导弹要求限制末端攻击角度的作战要求,基于滑模变结构控制理论,面向机动目标,设计了一种同时满足脱靶量和攻击角度约束要求的制导律。采用自适应滑模趋近律,并将目标机动视为干扰,利用线性变结构制导律推导出目标加速度的估计方程,并通过仿真证实了其有效性。所设计的制导律形式简单、实用。仿真结果表明,该制导律能够以期望的攻击角度命中目标,并对所提出制导律的性能进行了分析,具有一定的工程应用价值。

Some missiles with terminal attack angle constraints were required in the war, a guidance law based on the sliding mode variable structure control theory with miss distance and attack angle constraints was proposed for maneuvering targets. The target maneuvering was taken as a disturbance and an adaptive sliding mode approaching law was adopted, what＇s more, the estimated equation of the target acceleration is deduced based on the linear variable structure guidance law, the simulation result demonstrates the estimated value. The obtained guidance law was simple and practical. The simulation shows that the guidance law can be used to ensure the missiles hit the maneuvering targets with the desirable attack angle, and the performances of the proposed guidance law were analyzed, the research can offer some references for engineering application.